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Eckman Road Bridge

Eckman Road Bridge

Primary Photographer(s): Elaine Deutsch

Bridge Documented: March 10, 2012

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Key Facts

Facility Carried / Feature Intersected
Eckman Road Over Mill Creek
Location
Rural: Lancaster County, Pennsylvania: United States
Construction Date and Builder / Engineer
1935 By Builder/Contractor: Unknown and Engineer/Design: H. W. Crawford

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
102 Feet (31.1 Meters)
Structure Length
104 Feet (31.7 Meters)
Roadway Width
20 Feet (6.1 Meters)
Spans
1 Main Span(s)
NBI Number
22128

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge no longer exists!

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge is a riveted pony truss from the 1930s. In Pennsylvania it is somewhat unusual because it is not built to a state standard plan, like most truss bridges remaining from this period.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The single span, 104'-long, rivet-connected Warren with verticals pony truss bridge built in 1935 is supported on concrete abutments with fieldstone wingwalls. The truss members are built-up of standard steel sections. Channel railings are set to the inside faces of the trusses. Rolled floorbeams and stringers carry an open steel grid deck. The bridge has been altered by steel plate welded to the lower chords, upper chords, inclined end posts, diagonals, and gusset plates (ca. 1970). The Warren truss design emerged as one of the most commonly used truss designs after 1895 because of advances in metallurgy and the mid-1890s improvements to field pneumatic riveting. The result was a rapid shift from pinned to riveted connections and the Warren design was particularly well suited for rigid connections. Over 125 examples of the type/design have been identified in the state from the late 1890s to 1956. This late example has no noteworthy features or details. It has been altered by welded repairs. The bridge is not historically or technologically distinguished by its setting or context.

Discussion of Surrounding Area

The bridge carries a 2 lane road over a stream in a setting of predominantly scattered late 20th century houses. The immediate quadrants are wooded, but there is a subdivision to the east. Approximately 300' to the west is a late 19th century vernacular residence. The setting does not have the cohesiveness or integrity of a historic district.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Eckman Road Bridge

 
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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Eckman Road Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

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